from random import random
from time import perf_counter

DARTS=1000*1000*10
hits=0.0
start=perf_counter()
for i in range(1,DARTS+1):
    x,y=random(),random()
    dist=pow(x**2+y**2,0.5)
    if dist<=1.0:
        hits=hits+1
pi=4*(hits  / DARTS)
print("圆周率是：{}".format(pi))
print("运行时间是：{:.5f}s".format(perf_counter()-start))
